Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1979-10-09
1981-08-11
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 177, G01S 1395, G01S 740
Patent
active
042837251
ABSTRACT:
A weather radar calibration system, wherein one or more radar reflectors are located at a known position adjacent to an airport runway. Each of the reflectors are shaped to direct reflective patterns of known radar cross-section in response to radar signals transmitted from an aircraft following a known guidance path to the airport. The aircraft radar detects the radar return signals from the reflectors. Circuitry is responsive thereto for utilizing the radar returns for calibrating the weather radar for precipitation measurement and display purposes. The design of the reflectors is such as to minimize multipath reflections off the ground and prevent them from disturbing the reflective properties for aircraft following the guidance path.
REFERENCES:
patent: 2942257 (1960-06-01), Huntington
patent: 3108275 (1963-10-01), Chisholm
patent: 3243816 (1966-03-01), Chisholm
patent: 3716855 (1973-02-01), Asam
patent: 3729737 (1973-04-01), Asam
patent: 3745579 (1973-07-01), Lott
patent: 3775766 (1973-11-01), Gendreu
patent: 3787841 (1974-01-01), Beuhler et al.
patent: 3792475 (1974-02-01), Smetana
patent: 3832712 (1974-08-01), Goetz et al.
patent: 4005424 (1977-01-01), Fetter
patent: 4104634 (1978-08-01), Gillard et al.
LandOfFree
In-flight aircraft weather radar calibration does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with In-flight aircraft weather radar calibration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-flight aircraft weather radar calibration will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1028712